/*******************************************************************************
 * Copyright (c) 2013, Esoteric Software
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ******************************************************************************/

using System;

namespace Spine {
	public class AtlasAttachmentLoader : AttachmentLoader {
		private Atlas atlas;

		public AtlasAttachmentLoader (Atlas atlas) {
			if (atlas == null) throw new ArgumentNullException("atlas cannot be null.");
			this.atlas = atlas;
		}

		public Attachment NewAttachment (Skin skin, AttachmentType type, String name) {
			switch (type) {
			case AttachmentType.region:
				AtlasRegion region = atlas.FindRegion(name);
				if (region == null) throw new Exception("Region not found in atlas: " + name + " (" + type + ")");
				RegionAttachment attachment = new RegionAttachment(name);
				attachment.RendererObject = region.page.rendererObject;
				attachment.SetUVs(region.u, region.v, region.u2, region.v2, region.rotate);
				attachment.RegionOffsetX = region.offsetX;
				attachment.RegionOffsetY = region.offsetY;
				attachment.RegionWidth = region.width;
				attachment.RegionHeight = region.height;
				attachment.RegionOriginalWidth = region.originalWidth;
				attachment.RegionOriginalHeight = region.originalHeight;
				return attachment;
			}
			throw new Exception("Unknown attachment type: " + type);
		}
	}
}
